Machine for marking progressive optical lens

Abstract

A machine for marking the location for determining the correct prescription of progressive optical lens including a light beam, a table for supporting the progressive lens in the light beam, an optical protractor having visible indicia thereon for contact against the progressive lens to locate the symbols on the lens that indicate the position of the reference line thereon, and a stamp including adjustable stamp pads for contact against the lens in alignment with a reference line, to apply at least one temporary opaque symbol on the progressive lens from which the lens prescription can be determined.

What is claimed is: 
     
       1. A machine for marking the location for determining the correct prescription of progressive optical lens having symbols and a reference line comprising: a) a light beam;   b) a table for supporting the progressive lens in said light beam;   c) an optical protractor having visible indicia thereon for contact against the progressive lens to locate the symbols on the lens that indicate the position of the reference line thereon; and,   d) a stamp including flexible adjustable stamp pads with raised stamping symbols for contact against the lens in alignment with the reference line, to apply at least one temporary opaque symbol on the progressive lens from which the lens prescription can be determined.   
     
     
       2. The machine of claim 1 wherein said light beam includes a light source. 
     
     
       3. The machine of claim 2 wherein said light source is a fluorescent lamp. 
     
     
       4. The machine of claim 2 wherein said light source is a halogen lamp. 
     
     
       5. The machine of claim 1 further including a light source and a shutter for adjusting the amount of light emitted from said source. 
     
     
       6. The machine of claim 5 further including a slit, arranged spaced-apart from said source, for limiting the size of said light beam. 
     
     
       7. The machine of claim 6 wherein said optical protractor is transparent, mounted adjacent said slit, and arranged to have said visible indicia located in said light beam. 
     
     
       8. The machine of claim 1 wherein said table for supporting the progressive lens is adjustable. 
     
     
       9. The machine of claim 1 wherein a table for supporting the lens includes means for raising and lowering said shelf, including an exterior knob for twisting to change the height of said shelf. 
     
     
       10. The machine of claim 1 wherein said optical protractor is transparent to allow viewing therethrough for precise placement of said protractor adjacent the lens to locate the symbols on the lens. 
     
     
       11. The machine of claim 1 wherein said optical protractor is mounted across said light beam. 
     
     
       12. The machine of claim 1 further including an adjustable stamp pad for contact against the lens to apply an opaque symbol on the lens locating a fitting cross. 
     
     
       13. The machine of claim 1 further including an adjustable stamp pad for contact against the lens to apply an opaque symbol on the lens locating a distance reference. 
     
     
       14. The machine of claim 1 further including an adjustable stamp pad for contact against the lens to apply an opaque symbol on the lens locating a left lens prescription locale. 
     
     
       15. The machine of claim 1 further including an adjustable stamp pad for contact against the lens to apply an opaque symbol on the lens locating a right lens prescription locale. 
     
     
       16. The machine of claim 1 further including at least one scale from which to adjust a stamp pad for applying an opaque symbol with respect to the reference line. 
     
     
       17. The machine of claim 1 further including: a) a base;   b) a casing defined by a first large end and a second smaller end spaced-apart therefrom, spaced-apart top and bottom walls extending between said first and second ends and opposed side walls extending from said first end and converging to said second end;   c) said case pivoted at said first end to said base;   d) a light source interior said first end for sending a light beam toward said second end; and,   e) said second end having a slit formed therein for restricting the passage of said beam therethrough.   
     
     
       18. The machine of claim 17 wherein said casing is pivotally mounted to said base at said first end and including an adjustable support, spaced-apart from said pivotal mounting, to raise said casing at an angle with said base to facilitate easy use. 
     
     
       19. A machine for marking the location for determining the correct prescription of progressive optical lens having symbols comprising: a) a light source for generating a light beam;   b) a casing including an elongated interior for confining said light beam said casing forming a slit at an end spaced-apart from said light source for passage of a narrow beam of light therethrough;   c) a table for supporting the progressive lens in front of said slit so that said light beam passes through said lens;   d) an optical protractor having visible indicia located thereon adjacent said slit for contact against the progressive lens for coinciding said indicia and the symbols on the lens to indicate the location of a reference line on said lens; and   d) an ink stamp including flexible adjustable stamp pads with raised stamping symbols thereon for contact against the lens in alignment with the reference line, to apply at least one temporary opaque symbol on the progressive lens from which the lens prescription can be determined.   
     
     
       20. The machine of claim 19 further including a diffuser located between said light sight source and said slit for spreading the light beam into a uniform pattern.